Product developed in partnership with C4, world leader in the production of carbon blades. They represent the best that is currently produced using the latest technology like Overmoulding protection system(OPS) a rubber protection, ideal for our Atlantic waters. An all terrain fin, efficient in rough and hard sea conditions. Ideal for diving between 0 and -25 meters. Its external twist and recovery levels allow for incredible performance with a low consumption of muscle energy. They come equipped with the most advanced footpockets on the market, the C400 from C4.